Security Function Analysis on Performance of High-Speed Router Networking

A router is a device, in the computer networks, that is used to forward a data packet. Because of its function, the router becomes an important role in measuring the performance of computer networks. It needs to process the incoming data packets with high speed and minimum delay. Therefore, the router must have supported with a good security system as well. The activation of security applications and data encryptions in the router and firewall can consume the resources of CPU from the additional computations and they are able to affect the degradation of its performance. Furthermore, the security mechanisms in the router could bring a possibility of congestion in the networks during the ON/OFF functioning of security so it might influence the performance of the router in forwarding the data packets. A quantitative analysis based on queuing theory may be used to measure and predict as well as improve the performance of the router. In this paper, some scenarios of simulation will be carried out to analyze the effect of security function in the router with high-speed networks. The schemes use generalized exponential (GE-type) distribution to reflect bursty interarrival and service time at a router. The results show that the security function in the router could bring the decreasing of its performance.